Automatic Transmission Gear Indicator problems of the 2005 Jeep Grand Cherokee

2005 Jeep Grand Cherokee laredo with 3. 7 liter motor shows all four gears park neutral reverse and drive "prnd" active at the same time and the check engine obdii code u0103 (can bus communication lost with the shifter). This condition reoccurs every 1 to 7 days approximately. While in this mode the vehicle is in limp mode stuck in 2nd gear. I tried to drive it to the dealership twice with this condition on back roads but it will clear after driving for about 5 miles in limp mode. I had the vehicle towed to the Jeep dealership with this condition present. It cleared while they were trying to diagnose problem and they couldn't get it to repeat while driving it with my permission for three weeks. They were unable to diagnose the problem and no repairs were made. I got my vehicle back after three weeks at dealeship and problem reoccurred after two days of driving. Trying to drive this vehicle in limp mode is very dangerous as you cannot exceed about 30 miles per hour causing dangerous conditions to myself and other drivers on roads with speed limits higher than 30 mph. This is a serious safety issue and the dealership can't diagnose the problem. In the meantime I am stuck with a very unsafe vehicle.

Upon driving my daughter to school my transmission would not leave 1st gear. Rpm's would almost red line, I would let off the gas to let it shift and nothing, it stayed in 1st gear. Well when I looked at the gauges, my lights for prndl were all lit up instead of just "d". Boxes around every single letter. I proceeded to put the car in neutral and put it back in drive and still all 5 letters lit up and engine bogged down. It took several minutes for what like seemed forever for it to get into gear which was drive, I backed up traffic because I couldn't do the speed limit and had to use my hazard lights on the side of the road. This was my first occurrence, this has happened at least a dozen or more times since then to include yesterday Jan 5 2015. Every time I contact the dealer or ask on Jeep owner website, I get " sorry sir the only recall listed is the ignition switch and we don't have a part for that. " I checked the website and apparently my Jeep had been serviced for the transmission back in 2010 at 70k miles but does not explain what they did. I also need to put in another complaint about the transmission. June of 2014 and still to this day the gear shift can be moved from "p" to any gear, and that is when no keys are in the ignition. I was working under the hood and my 4 year old son did just that and almost ran me over. I checked and the vehicle had no keys in it they were with me in my tool box because I didn't want him to do just that.

My 2005 Jeep Grand Cherokee (first incident) while turning a corner at approximately 15-20mph revved up, would not shift, and prnd were all lit up on the dash, as well as the engine light came on. After a few starts the engine light has gone off. Second incident, from dead stop at a light and accelerating, same issue. Engine light goes off again. This has now occurred 4 times within 2 months and is a safety hazard considering the fact that your speed drops down out of no where and can potentially cause a serious accidents, causing harm to car a drivers, especially behind you, them not being aware that you are suddenly about to drop speed without brake lights!.

My 2005 Jeep Grand Cherokee started acting up about a year after I purchased it and has progressively gotten worse and worse. It has problems shifting and identifying what gear it is in on a daily basis, for example when I put it in drive from park prnd will all be illuminated like it doesn't know what gear it is in and it will make a loud thud sound. Then when you drive it won't shift from first gear and will rev up or it will get stuck in 3rd gear and won't down shift. Sometimes it will be driving normal and when I stop at a stop sign and then go to pull out into traffic it will stall right in the middle of traffic and I can't get it to snap out of it! it will also decide that it doesn't know what gear it is in while I am driving on the expressway and will start to rev up and freeze on me. This is very unsettling and dangerous and could defiantly cause a serious accident. From what I have read in other reviews many people have this same problem with their 2005 Jeep Grand Cherokee so it doesn't seem like just a coincidence to me and something should be done. I have taken it to different mechanics and no one can give me an answer as to whats wrong or how to fix it.

Sometimes when I drive the engine feels like it stalls out and my rpm's don't move, all the boxes around prnd light up and the check engine light comes on. I have to pull over and put the car in park or sometimes I have to turn it off. Once this is done the car continues to drive like nothing happened but the check engine light will stay on for a day. Sometimes it happens on the highway which is very scary to just drop speed down to 40. I have read many blogs about this issue. It happens at random times.